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Akihiko Seki
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Nirasaki-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic recording medium
Patent number
7,563,522
Issue date
Jul 21, 2009
TDK Corporation
Naoto Yajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
7,208,237
Issue date
Apr 24, 2007
TDK Corporation
Akihiko Seki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
7,157,163
Issue date
Jan 2, 2007
TDK Corporation
Naoto Yajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
7,011,900
Issue date
Mar 14, 2006
TDK Corporation
Akihiko Seki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and process for producing the same
Patent number
6,821,602
Issue date
Nov 23, 2004
TDK Corporation
Shigeo Kurose
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for producing a magnetic recording medium
Patent number
6,372,302
Issue date
Apr 16, 2002
TDK Corporation
Shigeo Kurose
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and a process for producing the same
Patent number
6,127,039
Issue date
Oct 3, 2000
TDK Corporation
Akira Saitoh
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Information
Patent Grant
Magnetic recording medium
Patent number
5,712,028
Issue date
Jan 27, 1998
TDK Corporation
Akihiko Seki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium comprising a magnetic layer containing fe...
Patent number
5,670,245
Issue date
Sep 23, 1997
Konica Corporation
Ryosuke Isobe
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for production of magnetic recording medium
Patent number
5,576,075
Issue date
Nov 19, 1996
TDK Corporation
Kaoru Kawasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium comprising an underlayer containing .alph...
Patent number
5,496,622
Issue date
Mar 5, 1996
Konica Corporation
Ryosuke Isobe
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for preparing magnetic recording medium
Patent number
5,424,094
Issue date
Jun 13, 1995
TDK Corporation
Eizo Tsunoda
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Information
Patent Grant
Rear projection screen
Patent number
5,020,877
Issue date
Jun 4, 1991
Pioneer Electronic Corp.
Toru Yokoo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
MAGNETIC RECORDING MEDIUM
Publication number
20070160876
Publication date
Jul 12, 2007
TDK Corporation
Naoto Yajima
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM
Publication number
20070026264
Publication date
Feb 1, 2007
TDK Corporation
Takayoshi Kuwajima
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Information
Patent Application
Magnetic recording medium
Publication number
20040207955
Publication date
Oct 21, 2004
TDK Corporation
Akihiko Seki
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium
Publication number
20040209121
Publication date
Oct 21, 2004
TDK Corporation
Naoto Yajima
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium
Publication number
20040197605
Publication date
Oct 7, 2004
TDK Corporation
Akihiko Seki
G11 - INFORMATION STORAGE
Information
Patent Application
Method for manufacturing magnetic tape and magnetic tape
Publication number
20040178191
Publication date
Sep 16, 2004
TDK Corporation
Naoto Yajima
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Information
Patent Application
Magnetic recording medium and process for producing the same
Publication number
20020102439
Publication date
Aug 1, 2002
Shigeo Kurose
G11 - INFORMATION STORAGE